pope benedict, considering changing the vatican constitution to allow a vote for his successor before march 15th. that's when the conclave had been set to begin. ben wedeman is in rome and i asked him what else he knows. >> reporter: erin, officials in the vatican are sending out messages that they would like to hold the conclave earlier than originally projected, just a few days ago, they were talking about the 15th of march. what they would like to do is hold it a bit earlier, bringing those 117 cardinals to rome to vote for the next pope, as quickly as possible. they definitely want to avoid what happened with pope gregory x in the 13th century when the conclave went on for three years. the last time there was a con claif, it went on for two days and that would be i deal for the vatican. they would like to have the whole process of electing the next pope and putting that pope into power over and done with by the 24th of march, by psalm sunday. erin? >>> still to come, we talk to a photographer who spent time with both oscar pistorius and reeva steenkamp. we'll see you the pictures